Improve error handling if the user clicks on the 'Check it' button without selecting a plugin

[jjgrainger]

When you select the 'Check it' button without selecting a plugin in the dropdown, do you feel we should add a message in the UI? A message does appear in the console. See screenshot.

[spacedmonkey]

Maybe disable the button until a plugin is selected...

[felixarntz]

Maybe disable the button until a plugin is selected...

+1 to that, let's disable the button until a plugin is selected. Better to be proactive than reactive in UX.